From 0be30c782cab1cf2f8ab18db1e96f2d8eea8fa3d Mon Sep 17 00:00:00 2001
From: "alexey.lysiuk" <alexey.lysiuk@gmail.com>
Date: Wed, 25 Jun 2014 20:11:05 +0300
Subject: [PATCH] Fix LZMA compilation on GCC with position-independent code
 (PIC) generation enabled

EBX register is used Global Offset Table in PIC
http://www.greyhat.ch/lab/downloads/pic.html
---
 lzma/C/CpuArch.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/lzma/C/CpuArch.c b/lzma/C/CpuArch.c
index 36e7680d9..425d18923 100644
--- a/lzma/C/CpuArch.c
+++ b/lzma/C/CpuArch.c
@@ -70,8 +70,24 @@ static void MyCPUID(UInt32 function, UInt32 *a, UInt32 *b, UInt32 *c, UInt32 *d)
   *c = c2;
   *d = d2;
 
+  #elif __PIC__
+
+  /* GCC or Clang WITH position-independent code generation */
+
+  __asm__ __volatile__ (
+    "xchgl %%ebx, %1\n"
+    "cpuid\n"
+    "xchgl %%ebx, %1\n"
+    : "=a" (*a) ,
+      "=r" (*b) ,
+      "=c" (*c) ,
+      "=d" (*d)
+    : "0" (function)) ;
+	
   #else
 
+  /* GCC or Clang WITHOUT position-independent code generation */
+
   __asm__ __volatile__ (
     "cpuid"
     : "=a" (*a) ,